PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-11:28:00
G02     69.5           23.1                3.7 +/-    2.22       7.6 +/-    2.22  0.030 / 0.040
G05     48.1           52.7                4.7 +/-    0.82       5.7 +/-    0.82  0.040 / 0.040
G12     180.6          20.4                6.9 +/-    2.00      14.9 +/-    2.00  0.120 / 0.230
G13     117.2          22.0                8.1 +/-    1.17      17.1 +/-    1.17  0.090 / 0.200
G15     154.6          23.2                5.6 +/-    2.19      11.4 +/-    2.19  0.070 / 0.130
G21     281.3          24.7                6.4 +/-    2.17      12.7 +/-    2.17  0.080 / 0.110
G25     222.7          43.4                7.1 +/-    2.09       9.8 +/-    2.09  0.030 / 0.030
G29     335.6          64.3                5.4 +/-    0.52       5.9 +/-    0.52  0.030 / 0.030